EP0504437A1 - Procedure and windtunnel balance determining the forces and moments on a vehicle - Google Patents

Procedure and windtunnel balance determining the forces and moments on a vehicle Download PDF

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Publication number
EP0504437A1
EP0504437A1 EP91104080A EP91104080A EP0504437A1 EP 0504437 A1 EP0504437 A1 EP 0504437A1 EP 91104080 A EP91104080 A EP 91104080A EP 91104080 A EP91104080 A EP 91104080A EP 0504437 A1 EP0504437 A1 EP 0504437A1
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European Patent Office
Prior art keywords
forces
component
scales
wind tunnel
moments
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EP91104080A
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German (de)
French (fr)
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EP0504437B1 (en
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Lubomir Polansky-Schmülling-Ziegert
Peter Prof. Dr. Giesecke
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Carl Schenck AG
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Carl Schenck AG
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Priority to DE59104258T priority Critical patent/DE59104258D1/en
Priority to EP91104080A priority patent/EP0504437B1/en
Publication of EP0504437A1 publication Critical patent/EP0504437A1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
    • G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/171—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using fluid means

Definitions

  • the invention relates to a method and a wind tunnel balance for determining the forces and moments that occur on a vehicle during the flow through a fluid.
  • 6-component or 7-component wind tunnel scales are usually used, as are shown, for example, in DE 37 15 460 C 1.
  • 7-component scales each vehicle wheel stands on a load cell, which measures the respective vertical force. All four load cells are arranged in a frame, which guides the horizontal forces acting on it via three further load cells into a foundation with solid foundations.
  • the 6-component scales the vehicle and its tires stand on a common platform that is statically determined by means of six load cells to determine the six aerodynamic components. The total aerordynamic forces and torques acting on the vehicle are determined directly with the 6-component scale without the wheelbase or the track gauge having to be known.
  • the invention is therefore based on the object of creating a wind tunnel balance or a method for determining aerodynamic forces and moments, which is distinguished by particularly high precision.
  • the elastic behavior of the tires and suspension should be taken into account and the actual force application points correctly included in the measurement and calculation.
  • This object is achieved according to the invention by a method according to claim 1 or by an arrangement according to claim 2.
  • This wind tunnel scale not only gives exact values for the pitching, yawing, rolling moment, the resistance, buoyancy and lateral force, but also all the load components on the individual wheels of the vehicle are also determined.
  • the 6-component scales can be designed, for example, as platform scales or as pyramid scales.
  • measuring rings with applied strain gauges can also be used.
  • FIG. 1 shows schematically the basic structure of the wind tunnel scale and FIG. 2 illustrates the principle according to the invention using the example of a two-dimensional representation.
  • FIG. 1 shows a motor vehicle which is set up in a wind tunnel (not shown) to determine its aerodynamic moments and forces, in particular the pitching moment My, the yaw moment Mz and the rolling moment Mx, the lift force Fz, the side force Fy and the resistance force Fx.
  • Each of the four wheels is on a separate 6-component platform scale W1 to W4.
  • the 6-component scales known per se allow the forces and moments in and around the three coordinates to be determined for each individual wheel. For the sake of clarity, this is only indicated for the 6-component scale W1.
  • a calculation of the aerodynamic moments with the help of the wheel loads Fz1 to Fz4, Fy1 to Fy4 and Fx1 to Fx4 determined by the scales W1 to W4 can only be carried out exactly if the actual center distances or track gauges are taken into account.
  • the distance between the load cell R2 of the scale W4 and the actual force introduction point of the wheel load Fz4 is Z4, the distance between the load cell R3 of the scale W1 and the actual one Force application point of the wheel load Fz1 is Z1.
  • the distance between the sensors for the vertical reaction forces R1 and R2 is X and the distance between the vertical sensors R3 and R4 is Y.
  • the actual wheelbase B is made up of L, Z1 and Z4.
  • Z4 can be calculated with the laws of statics with knowledge of R1, R2 and X as well as Z1 using R3, R4 and Y.
  • the pitching moment My can be determined by linking its value with the wheel forces Fz4 Fz1.
  • the buoyancy force Fz results from the addition of the vertical forces R1 to R4, the resistance force Fx is calculated from the addition of the horizontal forces R5 and R6.
  • a corresponding calculation process also results for the determination of the actual track width in the X-Y plane and for the calculation of the yaw moment Mz, the roll moment Mx and the lateral force Fy.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention relates to a wind-tunnel balance, by means of which it is possible to determine the aerodynamic moments (Mx, My and Mz) especially exactly, since, because a 6-component balance (W1-W4) is assigned to each individual vehicle wheel, the actual locations of the introduction of force on the tyre contact area and therefore the actual tread and actual wheelbase can be taken into account. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Windkanalwaage zur Ermittlung der Kräfte und Momente, die während der Anströmung durch ein Fluid an einem Fahrzeug auftreten.The invention relates to a method and a wind tunnel balance for determining the forces and moments that occur on a vehicle during the flow through a fluid.

Zur Messung von aerodynamischen Momenten an Fahrzeugen werden meist 6-oder 7-Komponenten-Windkanalwaagen eingesetzt, wie sie beispielsweise in der DE 37 15 460 C 1 dargestellt sind. Bei 7-Komponenten-Waagen steht jedes Fahrzeugrad auf einer Wägezelle, welche die jeweilige Vertikalkraft mißt. Alle vier Wägezellen sind in einem Rahmen angeordnet, welcher die auf ihn wirkenden Horizontalkräfte über drei weitere Wägezellen in ein fundamentfestes Gestell leitet. Bei den 6-Komponenten-Waagen steht das Fahrzeug mit seinen Reifen auf einer gemeinsamen Plattform, die zur Bestimmung der sechs aerodynamischen Komponenten mittels sechs Wägezellen statisch bestimmt gelagert ist. Die am Fahrzeug wirkenden aerordynamischen Gesamtkräfte und Gesamtmomente werden mit der 6-Komponenten-Waage direkt bestimmt, ohne daß der Radstand oder die Spurweite bekannt sein müssen.For the measurement of aerodynamic moments on vehicles, 6-component or 7-component wind tunnel scales are usually used, as are shown, for example, in DE 37 15 460 C 1. With 7-component scales, each vehicle wheel stands on a load cell, which measures the respective vertical force. All four load cells are arranged in a frame, which guides the horizontal forces acting on it via three further load cells into a foundation with solid foundations. In the 6-component scales, the vehicle and its tires stand on a common platform that is statically determined by means of six load cells to determine the six aerodynamic components. The total aerordynamic forces and torques acting on the vehicle are determined directly with the 6-component scale without the wheelbase or the track gauge having to be known.

Unbefriedigend ist bei den 7-Komponenten-Windkanalwaagen, daß die tatsächlichen Krafteinleitungspunkte am Reifenlatsch bei der Momentenermittlung nicht berücksichtigt werden. Die Berechnung des Roll-, Nick- und Giermomentes erfolgt nämlich durch Verknüpfung der gemessenen Kräfte mit dem theoretischen Achsabstand bzw. der theoretischen Spurweite. Diese Werte können jedoch insbesondere während der Anströmung ganz erheblich von den tatsächlichen Krafteinleitungspunkten abweichen, weshalb das ermittelte Ergebnis mit einem deutlichen Fehler behaftet ist.It is unsatisfactory with the 7-component wind tunnel scales that the actual force application points on the tire patch are not taken into account when determining the torque. The roll, pitch and yaw moment are calculated by linking the measured forces with the theoretical center distance or the theoretical track width. However, these values can deviate considerably from the actual force introduction points, especially during the flow, which is why the result obtained is associated with a clear error.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Windkanalwaage bzw. ein Verfahren zur Bestimmung aerodynamischer Kräfte und Momente zu schaffen, welches sich durch eine besonders hohe Präzision auszeichnet. Insbesondere soll das elastische Verhalten von Reifen und Fahrwerksaufhängung berücksichtigt werden und die tatsächlichen Krafteinleitungspunkte korrekt in die Messung und Berechnung eingehen. Diese Aufgabe wird erfindungsgemäß durch ein Verfahren nach Anspruch 1 bzw. durch eine Anordnung nach Anspruch 2 gelöst.The invention is therefore based on the object of creating a wind tunnel balance or a method for determining aerodynamic forces and moments, which is distinguished by particularly high precision. In particular, the elastic behavior of the tires and suspension should be taken into account and the actual force application points correctly included in the measurement and calculation. This object is achieved according to the invention by a method according to claim 1 or by an arrangement according to claim 2.

Durch diese erfindungsgemäße Windkanalwaage erhält man nicht nur exakte Werte für das Nick-, Gier-, Rollmoment, die Widerstands-, Auftriebs- und Seitenkraft, sondern es werden zusätzlich auch noch sämtliche Lastkomponenten an den einzelnen Rädern des Fahrzeugs ermittelt.This wind tunnel scale according to the invention not only gives exact values for the pitching, yawing, rolling moment, the resistance, buoyancy and lateral force, but also all the load components on the individual wheels of the vehicle are also determined.

Dabei ist es nicht unbedingt nötig, alle sechs Komponenten für jedes Fahrzeugrad auch tatsächlich zu messen. Wenn beispielsweise nur das Nickmoment ermittelt werden soll, kann die Messung von zwei Vertikalkraftkomponenten je Waage genügen, um damit den Radstand zu bestimmen und das Nickmoment zu errechnen.It is not absolutely necessary to actually measure all six components for each vehicle wheel. If, for example, only the pitching moment is to be determined, the measurement of two vertical force components per scale can suffice to determine the wheelbase and to calculate the pitching moment.

Die 6-Komponentenwaagen können beispielsweise als Plattform - oder als Pyramidenwaagen ausgeführt sein.The 6-component scales can be designed, for example, as platform scales or as pyramid scales.

Bei etwas niedrigeren Anforderungen an die Meßgenauigkeit können auch Meßringe mit applizierten Dehnungsmeßstreifen verwendet werden.If the requirements for measuring accuracy are somewhat lower, measuring rings with applied strain gauges can also be used.

Weitere vorteilhafte Merkmale sowie Aufbau und Funktion der Erfindung ergeben sich aus der nachstehenden Beschreibung anhand der Zeichnung. Hierzu zeigt Figur 1 schematisch den prinzipiellen Aufbau der Windkanalwaage und Figur 2 verdeutlicht das erfindungsgemäße Prinzip am Beispiel einer zweidimensionalen Darstellung.Further advantageous features as well as the structure and function of the invention result from the following description with reference to the drawing. 1 shows schematically the basic structure of the wind tunnel scale and FIG. 2 illustrates the principle according to the invention using the example of a two-dimensional representation.

Figur 1 zeigt ein Kraftfahrzeug, welches zur Bestimmung seiner aerodynamischen Momente und Kräfte, insbesondere des Nickmoments My, des Giermoments Mz und des Rollmoments Mx , der Auftriebskraft Fz, der Seitenkraft Fy und der Widerstandskraft Fx, in einem nicht dargestellten Windkanal aufgestellt ist. Jedes der vier Räder steht auf einer separaten 6-Komponenten-Plattformwaage W1 bis W4. Durch die an sich bekannten 6-Komponenten-Waagen lassen sich für jedes einzelne Rad die Kräfte und Momente in den bzw. um die drei Koordinaten bestimmen. Dies ist der Übersichtlichkeit wegen nur für die 6-Komponenten-Waage W1 angedeutet. Eine Berechnung der aerodynamischen Momente mit Hilfe der duch die Waagen W1 bis W4 ermittelten Radlasten Fz1 bis Fz4, Fy1 bis Fy4 und Fx1 bis Fx4 läßt sich nur dann exakt durchführen, wenn die tatsächlichen Achsabstände bzw. Spurweiten berücksichtigt werden.FIG. 1 shows a motor vehicle which is set up in a wind tunnel (not shown) to determine its aerodynamic moments and forces, in particular the pitching moment My, the yaw moment Mz and the rolling moment Mx, the lift force Fz, the side force Fy and the resistance force Fx. Each of the four wheels is on a separate 6-component platform scale W1 to W4. The 6-component scales known per se allow the forces and moments in and around the three coordinates to be determined for each individual wheel. For the sake of clarity, this is only indicated for the 6-component scale W1. A calculation of the aerodynamic moments with the help of the wheel loads Fz1 to Fz4, Fy1 to Fy4 and Fx1 to Fx4 determined by the scales W1 to W4 can only be carried out exactly if the actual center distances or track gauges are taken into account.

Diese weichen nämlich aufgrund der Elastizität des Reifens und des Fahrwerkes in Abhängigkeit von der Fahrwerksgeometrie (Sturz, Vorspur, Spreizung, usw.) schon bei nichtangeströmtem Fahrzeug von den theoretischen Werten ab. Diese Abweichung kann sich in Abhängigkeit der vorgenannten Parameter während der Windanströmung gravierend verstärken.Because of the elasticity of the tire and the chassis, these deviate from the theoretical values depending on the chassis geometry (camber, toe-in, spread, etc.) even when the vehicle is not exposed to the flow. Depending on the above-mentioned parameters, this deviation can increase significantly during the wind flow.

Durch den Einsatz der vier 6-Komponenten-Waagen W1 bis W4 können für jedes Fahrzeugrad sämtliche Kräfte und Momente gemessen werden, außerdem läßt sich der exakte tatsächliche Krafteinleitungspunkt am Reifenlatsch für jedes Fahrzeugrad und somit die tatsächlichen Werte für Achsabstand und Spurweite bestimmen.By using the four 6-component scales W1 to W4, all forces and moments can be measured for each vehicle wheel, and the exact actual force application point on the tire patch for each vehicle wheel and thus the actual values for wheelbase and track width can be determined.

Anhand der Fig. 2 soll nun am Beispiel der Bestimmung des Radabstandes das zugrundeliegende Prinzip mittels einer zweidimensionalen Darstellung erklärt werden. Aufgrund der zweidimensionalen Darstellungsweise sind von den beiden 6-Komponenten-Waagen W4 und W1 nur jeweils drei zu messende Reaktionskräfte dargestellt; nämlich R1, R2 und R5 für die Waage W4 und R3, R4 und R6 für die Waage W1. Die Reaktionskräfte stehen stellvertretend für dort angeordnete Wägezellen. Dabei sind R1 bis R4 vertikal verlaufende Reaktionskräfte, während R5 und R6 in horizontaler Richtung liegen. Der Abstand zwischen den beiden einander zugewandten Wägezellen R2 und R3 der Plattformen von W4 bzw. W1 sei L. Der Abstand der Wägezelle R2 der Waage W4 zum tatsächlichen Krafteinleitungspunkt der Radlast Fz4 sei Z4, der Abstand zwischen der Wägezelle R3 der Waage W1 und dem tatsächlichen Krafteinleitungsort der Radlast Fz1 betrage Z1. Der Abstand zwischen den Aufnehmern für die vertikalen Reaktionskräfte R1 und R2 betrage X und der Abstand zwischen den Vertikalkraftaufnehmern R3 und R4 sei Y.Based on FIG. 2, the underlying principle will now be explained by means of a two-dimensional representation using the example of determining the wheel spacing. Due to the two-dimensional representation of the two 6-component scales W4 and W1, only three reaction forces to be measured are shown; namely R1, R2 and R5 for the Scale W4 and R3, R4 and R6 for the scale W1. The reaction forces are representative of the load cells arranged there. R1 to R4 are vertical reaction forces, while R5 and R6 are in the horizontal direction. The distance between the two facing load cells R2 and R3 of the platforms of W4 and W1 is L. The distance between the load cell R2 of the scale W4 and the actual force introduction point of the wheel load Fz4 is Z4, the distance between the load cell R3 of the scale W1 and the actual one Force application point of the wheel load Fz1 is Z1. The distance between the sensors for the vertical reaction forces R1 and R2 is X and the distance between the vertical sensors R3 and R4 is Y.

Der tatsächliche Radstand B setzt sich aus L, Z1 und Z4 zusammen. Z4 läßt sich mit den Gesetzen der Statik bei Kenntnis von R1, R2 und X ebenso berechnen wie Z1 unter Verwendung von R3, R4 und Y.The actual wheelbase B is made up of L, Z1 and Z4. Z4 can be calculated with the laws of statics with knowledge of R1, R2 and X as well as Z1 using R3, R4 and Y.

Ist der tatsächliche Radstand B ermittelt, so läßt sich durch Verknüpfungen seines Wertes mit den Radkräften Fz4 Fz1 das Nickmoment My bestimmen. Die Auftriebskraft Fz ergibt sich durch Addition der Vertikalkräfte R1 bis R4, die Widerstandskraft Fx wird durch Addition der Horizontalkräfte R5 und R6 berechnet.If the actual wheelbase B is determined, the pitching moment My can be determined by linking its value with the wheel forces Fz4 Fz1. The buoyancy force Fz results from the addition of the vertical forces R1 to R4, the resistance force Fx is calculated from the addition of the horizontal forces R5 and R6.

Ein entsprechender Berechnungsgang ergibt sich auch für die Ermittlung der tatsächlichen Spurweite in der X-Y-Ebene und für die Berechnung des Giermomentes Mz, des Rollmomentes Mx und der Seitenkraft Fy.A corresponding calculation process also results for the determination of the actual track width in the X-Y plane and for the calculation of the yaw moment Mz, the roll moment Mx and the lateral force Fy.

Claims (7)

Verfahren zur Ermittlung der Kräfte und Momente, die während der Anströmung durch ein Fluid an einem Fahrzeug auftreten, gekennzeichnet durch folgende Verfahrensschritte:

Ermitteln der ohne Anströmung an jedem Fahrzeugrad angreifenden Kräfte und Momente;
Ermitteln der bei Anströmung an jedem Fahrzeugrad angreifenden Kräfte und Momente;
Bestimmen des resultierenden Kraftvektors und dessen Angriffspunkt am Reifenlatsch eines jeden Fahrzeugrades;
Ermitteln des tatsächlichen Radstandes und der tatsächlichen Spurweite bei Anströmung und
Errechnen der am Fahrzeug angreifenden Momente mit den tatsächlichen Krafteinleitungspunkten und Hebelarmen.Method for determining the forces and moments that occur on a vehicle during the flow through a fluid, characterized by the following method steps:

Determining the forces and moments acting on each vehicle wheel without inflow;
Determining the forces and moments acting on each vehicle wheel during the flow;
Determining the resulting force vector and its point of application on the tire patch of each vehicle wheel;
Determine the actual wheelbase and the actual track width during the inflow and
Calculate the moments acting on the vehicle with the actual force application points and lever arms. Windkanalwaage zur Ermittlung der Kräfte und Momente, die während der Anströmung durch ein Fluid an einem Fahrzeug auftreten, dadurch gekennzeichnet, daß jedem einzelnen Fahrzeugrad eine separate 6-Komponenten-Waage zugeordnet ist.Wind tunnel scale for determining the forces and moments that occur on a vehicle during the flow through a fluid, characterized in that a separate 6-component scale is assigned to each individual vehicle wheel. Windkanalwaage nach Anspruch 2, dadurch gekennzeichnet, daß sämtliche 6-Komponenten-Waagen einstellbar in einem gemeinsamen Grundgestell angeordnet sind.Wind tunnel balance according to claim 2, characterized in that all 6-component scales are arranged adjustable in a common base frame. Windkanalwaage nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß mindestens zwei Kraftkomponenten jeder 6-Komponenten-Waagen gemessen und ausgewertet werden.Wind tunnel balance according to claim 2 or 3, characterized in that at least two force components of each 6-component balance are measured and evaluated. Windkanalwaage nach einem der Ansprüche 2-4, dadurch gekennzeichnet, daß die 6-Komponenten-Waagen als Plattformwaagen ausgebildet sind.Wind tunnel scale according to one of claims 2-4, characterized in that the 6-component scales are designed as platform scales. Windkanalwaage nach einem der Ansprüche 2-4, dadurch gekennzeichnet, daß die 6-Komponenten-Waagen als Pyramidenwaagen ausgebildet sind.Wind tunnel scale according to one of claims 2-4, characterized in that the 6-component scales are designed as pyramid scales. Windkanalwaage nach einem der Ansprüche 2-4, dadurch gekennzeichnet, daß die 6-Komponenten-Waagen als Meßringe ausgebildet sind.Wind tunnel balance according to one of claims 2-4, characterized in that the 6-component scales are designed as measuring rings.
EP91104080A 1991-03-16 1991-03-16 Procedure and windtunnel balance determining the forces and moments on a vehicle Expired - Lifetime EP0504437B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59104258T DE59104258D1 (en) 1991-03-16 1991-03-16 Method and wind tunnel scale for determining the forces and moments on a vehicle.
EP91104080A EP0504437B1 (en) 1991-03-16 1991-03-16 Procedure and windtunnel balance determining the forces and moments on a vehicle

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Application Number Priority Date Filing Date Title
EP91104080A EP0504437B1 (en) 1991-03-16 1991-03-16 Procedure and windtunnel balance determining the forces and moments on a vehicle

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EP0504437A1 true EP0504437A1 (en) 1992-09-23
EP0504437B1 EP0504437B1 (en) 1995-01-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527742A1 (en) * 1995-07-28 1997-01-30 Audi Ag Process and wind tunnel scale for aerodynamic measurements on vehicles
DE19702421A1 (en) * 1997-01-24 1998-08-06 Audi Ag Test stand for motor vehicle for recording forces and torque exerted on vehicle in wind tunnel
DE10113850A1 (en) * 2001-03-21 2002-12-12 Fkfs Forschungsinstitut Fuer K Process for improving the measurement accuracy in flow channels and flow channel for performing the method
EP1552262A1 (en) * 2002-10-18 2005-07-13 Femboeck Automotive GmbH Test stand for motor vehicles
DE10361314B3 (en) * 2003-12-19 2005-11-10 Forschungsinstitut für Kraftfahrwesen und Fahrzeugmotoren Stuttgart (FKFS) Method for determining vertical forces acting on a motor vehicle in a wind tunnel under wind flow

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
DE10338638A1 (en) * 2003-08-22 2005-03-17 Bayerische Motoren Werke Ag Test rig and method for aerodynamic measurements on vehicles
CN111076946B (en) * 2020-01-02 2020-11-06 中国科学院苏州生物医学工程技术研究所 Method and device for automatically measuring wheel track, wheel width, wheel base, pose and mass center of vehicle

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EP0168527A2 (en) * 1984-07-14 1986-01-22 Carl Schenck Ag Method and device for the determination of moments in aerodynamic measurements at vehicles on wind tunnel balances
DE3715460C1 (en) * 1987-05-08 1988-10-13 Pfister Gmbh Wind tunnel balance and method for operating it

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0168527A2 (en) * 1984-07-14 1986-01-22 Carl Schenck Ag Method and device for the determination of moments in aerodynamic measurements at vehicles on wind tunnel balances
DE3715460C1 (en) * 1987-05-08 1988-10-13 Pfister Gmbh Wind tunnel balance and method for operating it

Non-Patent Citations (1)

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Title
ICIACF '89,Göttingen,DE,Sept. 18-21,1989, IEEE Publication 89 CH2762-3 T.Preusser et al.:"External 6-Component Wind Tunnel Balancies For Aerospace Simulation Facilities." *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527742A1 (en) * 1995-07-28 1997-01-30 Audi Ag Process and wind tunnel scale for aerodynamic measurements on vehicles
DE19702421A1 (en) * 1997-01-24 1998-08-06 Audi Ag Test stand for motor vehicle for recording forces and torque exerted on vehicle in wind tunnel
DE19702421C2 (en) * 1997-01-24 1998-12-24 Audi Ag test bench
DE10113850A1 (en) * 2001-03-21 2002-12-12 Fkfs Forschungsinstitut Fuer K Process for improving the measurement accuracy in flow channels and flow channel for performing the method
DE10113850B4 (en) * 2001-03-21 2005-02-10 FKFS Forschungsinstitut für Kraftfahrwesen und Fahrzeugmotoren Stuttgart Method for improving the measuring accuracy in flow channels and flow channel for carrying out the method
EP1552262A1 (en) * 2002-10-18 2005-07-13 Femboeck Automotive GmbH Test stand for motor vehicles
DE10361314B3 (en) * 2003-12-19 2005-11-10 Forschungsinstitut für Kraftfahrwesen und Fahrzeugmotoren Stuttgart (FKFS) Method for determining vertical forces acting on a motor vehicle in a wind tunnel under wind flow
EP1544589A3 (en) * 2003-12-19 2008-01-30 Forschungsinstitut Für Kraftfahrwesen Und Fahrzeugmotoren Stuttgart Methode and apparatus for determining vertical forces acting on a vehicle at wind flow in a wind tunnel.

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DE59104258D1 (en) 1995-02-23
EP0504437B1 (en) 1995-01-11

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